Generalized least squares for trend estimation of summarized dose-response data

This paper presents a command, gist, for trend estimation across different exposure levels for either single or multiple summarized case-control, incidence-rate, and cumulative incidence data. This approach is based on constructing an approximate covariance estimate for the log relative risks and estimating a corrected linear trend using generalized least squares. For trend analysis of multiple studies, gist can estimate fixed- and random-effects metaregression models.